Expansion vessel Reflex N 8, 4 bar / 70°C, grey

Reflex N 8 expansion vessel in grey is designed for heating and hot-water systems where reliable pressure compensation and compact size are required. The vessel is rated for a maximum precharge pressure of 4 bar and a maximum operating temperature of 70°C. It compensates for thermal expansion of system fluid, helps maintain stable system pressure and protects pumps, valves and other hydraulic components from pressure fluctuations.

Advantages

This expansion vessel provides accurate pressure compensation in small residential and light commercial installations while occupying minimal space. Its construction is suited to typical heating and domestic hot-water circuits and supports stable pressure behaviour up to the specified temperature and precharge. The grey finish allows installation in visible or service areas without significant visual impact.

Suitable for

• Residential central heating systems
• Domestic hot-water circuits
• Small commercial heating installations
• Compact or wall-mounted boiler systems

Key specifications

• Maximum precharge pressure: 4 bar
• Maximum operating temperature: 70°C
• Intended application: heating and hot-water systems
• Colour: grey
• Design type: diaphragm expansion vessel for closed hydraulic systems

How to use

Install the expansion vessel according to the system manufacturer’s guidelines and applicable local regulations, ensuring correct orientation and secure mounting. Connect the vessel to the system at an appropriate tapping point where it can best compensate for pressure changes. Check and set the precharge pressure to match the static system pressure before final commissioning. Periodically inspect the vessel and its connection for signs of leaks, membrane failure or pressure loss, and verify the precharge pressure during routine maintenance.

Usage recommendations

Use this Reflex expansion vessel in systems with maximum working temperatures up to 70°C and with system fill pressures compatible with a 4 bar precharge. Ensure the precharge is adjusted to the static system pressure and perform regular checks to maintain reliable operation and protection of system components.